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LCTPC WP Phone Meeting #71 – 26.11.2008Micromegas module1 D. Attié, P. Colas Analysis Meeting, DESY 11 February 2009 LP test beam Micromegas analysis -

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Presentation on theme: "LCTPC WP Phone Meeting #71 – 26.11.2008Micromegas module1 D. Attié, P. Colas Analysis Meeting, DESY 11 February 2009 LP test beam Micromegas analysis -"— Presentation transcript:

1 LCTPC WP Phone Meeting #71 – 26.11.2008Micromegas module1 D. Attié, P. Colas Analysis Meeting, DESY 11 February 2009 LP test beam Micromegas analysis - Data flow, content and quality -

2 2David.Attie@cea.frAnalysis Meeting - DESY, 11 February 2009 Data flow T2K electronics 1728 channels Back-end electronic (ML405) PC T2K DAQ on Linux ILC_DATA_01 ILC_DATA_02 ILC_BCKP_01 ILC_BCKP_02 Saclay 500 Go 1 To 500 Go NativeToLCIO (Yun-Ha Shin) Transfert done by K. Dehmelt TCP/IP via ethenet Optical fibre 1-hour automatic rsync backup Grid

3 3David.Attie@cea.frAnalysis Meeting - DESY, 11 February 2009 Data content summary RUNDate (2008)DetectorGasSourceContent 1-79July-Sept.Standard Pads in gas boxØ, …Ø, 55 Fe DAQ, routing test, 80-133Sept.-Oct.Standard Pads in gas boxP5Cosmics Electronic tuning 134-14127-28 Oct.Resistive Anode in gas boxP5Cosmics Electronic tuning 142-14629-30 Oct.Resistive Anode in gas boxT2KCosmics Electronic tuning 146-18121 Nov. Standard Pads in LP1 [B=0] T2KCosmics Gas improvment, electronic test 182-18822-24 Nov. Resistive Anode in LP1 [B=0] T2KCosmics ~ 165 000 events 189-21725 Nov. Resistive Anode in LP1 [B=0] T2K E e- =5 GeV + Cosmics 218-28128 Nov. – 8 Dec. Resistive Anode in LP1 [B=0] T2KE e- =5 GeV 322-4698–15 Dec. Resistive Anode in LP1 [B=1T] T2KE e- =5 GeV Many z values, electronic shaping & frequencies, electric field ~ 1 200 000 events

4 4David.Attie@cea.frAnalysis Meeting - DESY, 11 February 2009 Z beam = 50 cm Standard conditions*Low drift conditions** ZS (~10 000 evts)No ZS (~3 000 evts)ZS (~10 000 evts)No ZS (~3 000 evts) peakingTime (ns) Run #event Run #event Run #event Run #event 100312100623183264326/4346917/50004293000 200313129543173264430100004283000 500314101423193264431100004273000 1000315110013201908432100004263000 2000316105124243000433100004253000 Z beam = 30 cm Standard conditions*Low drift conditions** ZS (~10 000 evts)No ZS (~3 000 evts)ZS (~10 000 evts)No ZS (~3 000 evts) peakingTime (ns)Run#eventRun#eventRun#eventRun#event 100329100003383000330100003523000 200333100003393000343100003513000 500334100003403000344100003503000 1000335100003413000345100003493000 2000336100003423000346100003483000 Z beam = 40 cm Standard conditions*Low drift conditions** ZS (~10 000 evts)No ZS (~3 000 evts)ZS (~10 000 evts)No ZS (~3 000 evts) peakingTime (ns)Run#eventRun#eventRun#eventRun#event 10037310000380300038510000394run 200374100003813000386100003933000 500377100003823000387100003923000 1000378100003833000388100003913000 2000379100003843000389100003903000 Z beam = 10 cm Standard conditions*Low drift conditions** ZS (~10 000 evts)No ZS (~3 000 evts)ZS (~10 000 evts)No ZS (~3 000 evts) peakingTime (ns)Run#eventRun#eventRun#eventRun#event 100395100004063000407100004163000 200396100004053000408100004153000 500397100004023000409100004143000 1000398100004013000410100004133000 2000399100004003000411100004123000 Z beam = 20 cm Standard conditions*Low drift conditions** ZS (~10 000 evts)No ZS (~3 000 evts)ZS (~10 000 evts)No ZS (~3 000 evts) peakingTime (ns)Run#eventRun#eventRun#eventRun#event 100353100003623000363100003723000 200354100003613000364100003713000 500355100003603000365100003703000 1000356100003593000366100003693000 2000357100003583000367100003683000 * Standard conditions: 230V/cm divideScaClockBy0x4 nClocksBeforeStop0x780 V (V)I (µA) Mesh3800 Cathode1347064 7th Strip3978,1 ** Low drift conditions: 140V/cm divideScaClockBy0x4 nClocksBeforeStop0x780 V (V)I (µA) Mesh3800 Cathode835139 7th Strip39031,9 Data content summary (B=1T) B=OT data 25 sampling frequency

5 5David.Attie@cea.frAnalysis Meeting - DESY, 11 February 2009 Bulk Micromegas gain in T2K gas

6 6David.Attie@cea.frAnalysis Meeting - DESY, 11 February 2009 Total number of events: ~5×10 6 Data taken for z=10 cm at several sampling frequencies: 10, 25, 33, 50 & 100 MHz Most of data taken for alignment, electronic tests and parameters tuning are for specialists Electronic logbook available at: https://ttfinfo.desy.de/LP1elog LCIO data available on the grid accessible within the VO 'ilc' at: lfn:/grid/ilc/tpc/2008/t24/micromegas/LCIO/*.slcio (srm://dcache-se-desy.desy.de/pnfs/desy.de/ilc/tpc/2008/t24/micromegas/LCIO/*.slcio) Data content summary

7 7David.Attie@cea.frAnalysis Meeting - DESY, 11 February 2009 Here you have some very helpful web links: Generalities: - http://www.nordugrid.org/ - http://www.eu-egee.org - http://wiki.egee-see.org/index.php/Main_Page First of all, get a Certification Authority (CA): - Example for France: http://igc.services.cnrs.fr/GRID-FR How to get the Virtual Organization - http://grid.desy.de/ilc/ - direct link to subscribe to ‘ilc’ VO: https://grid-voms.desy.de:8443/vo/ilc/vomrs?path=/RootNode/MemberRegistration&action How to access to the data

8 8David.Attie@cea.frAnalysis Meeting - DESY, 11 February 2009 Beam data in T2K gas

9 9David.Attie@cea.frAnalysis Meeting - DESY, 11 February 2009 LCTPC WP Phone Meeting #71 – 26.11.2008 Micromegas module 9 Peaking time: 1 μs Frequency sampling: 100 MHz Cosmic ray data sample

10 10 Acknowledgement Thank you very much to all who help in data taking !!! Analysis Meeting – DESY, 11 February 2009 david.attie@cea.fr

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